BluePrint Engines BP4002CT1 GM 400 CID 508 HP Base Long Block

BluePrint BP4002CT1 508 HP Chevy Base LB

BluePrint BP4002CT1 GM 400 CID 508 HP Base Long Block units deliver an elite mechanical centerpiece for Chevrolet enthusiasts seeking massive Small Block displacement and power. This 6.6L 400ci build features high-flow aluminum cylinder heads specifically engineered to produce a verified 508 horsepower. Built with a modern hydraulic roller camshaft and a precision external balance, this powertrain is a direct performance fit for iconic GM platforms requiring both significant torque and structural integrity.

As a ready-to-spec long block foundation, this assembly arrives in an induction-ready state, allowing for customized build specifications. The BluePrint BP4002CT1 is backed by an industry-leading 30-Month / 50,000-mile limited warranty, providing long-term structural reliability for your project. This high-performance core is designed for builders who require elite assembly standards and modern manufacturing reliability in a traditional 400ci Chevy package protected by a modern one-piece rear main seal.

Key Features of BluePrint High Performance BP4002CT1

• 6.6L 400ci displacement delivering 508 horsepower performance.
• High-flow aluminum cylinder heads for superior thermal management.
• Precision-machined foundation ensures long-term structural integrity.
• Hydraulic roller camshaft ensures smooth and consistent valvetrain stability.
• External engine balance configuration for smooth power delivery.
• Modern one-piece rear main seal prevents common fluid weeping.
• Standard 30-Month / 50,000-mile professional warranty included.

BP4002CT1 Include:

• Oil Pan
• Valve Covers
• Timing Cover